Date: Mon, 27 Feb 1995 14:17:50 -0500 (EST) From: Machine Media Subject: CV --> S-Trig > The control voltages are okay, 1 volt per octave, but Moog and Roland > use different gate/trigger signal levels. You'll need a V-trigger to > S-trigger adapter to control your Moog from your 202, or to play the > 202 from the Moog's keyboard. Building such an adapter is, I believe, > a matter of only soldering a special cable; I don't recall, as it's > been a long time since I got rid of my Minimoog.... Why would anyone get rid of a Mini-Moog?? I never play mine, I just stare at the mahogany ;) OK, since this has become a list topic, I'll paste in what I saved from past posts -- I think it's originally from Tom Moransky. This is what I have have on Gate --> S-Trig converters. I'm gonna build one soon, I'll post again to the list to let you all know. Anyone have any ideas what sort of "container" I can put the circuit in?? I'm thinking of using a film canister -- sounds better than balling it up in electrical tape like some sort of cyber cat toy :) MASSIVE PASTE BEGINS: here's from the sept. 89 issue of electronic musician, p70: S-trig out ----------| |-------- Gate 10k / | [v-------/\/\/\---------+-------| 2N3904 --- | | v /// | - | | 1N4148 A | | | | --- --- --- /// /// /// and here's another one from the paia kit, pretty much similar to the above: S-trig out RadioShack #274-201 1-gnd, 2-voltage (5~15v;0v active) ----------| |-------- Gate (0v;5v active) / | [v------------------------------| 2N3391 --- | v /// | | | | | | --- --- /// /// Right, you can do it with an NPN transistor and a 10K resistor... (or 47K or whatever you have at hand...) one end of resistor to gate signal, other end to base of transistor. Emitter of transistor to ground of incoming gate signal, and ground of Mini' S-trig input. Collector of transistor to S-trig signal input. Don't have the pinouts for the S-trigger connector available, so I can't say which pin is which at the moment. MASSIVE PASTE ENDS On a Cinch-Jones connector (like on a Mini-Moog, I don't know about PolyMoogs, MultiMoogs, Rogues, Liberations, MemoryMoogs, 55's, etc.) the narrow conductor is the trigger signal (hot) and the wider pin is the ground. I've been told an S-Trig works by shorting to ground. PEACE OUT :) MARK